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Our studies showed that the PADs in few-cycle laser pulses were determined by the kinetic energy of photoelectrons, the absolute phase of the carrier wave, and the ellipticity and the duration of the short pulses.

我们用三模的激光场来模拟超激光脉冲,对超激光脉冲与惰性气体原子的相互作用进行了系统的研究,成功地展示了绝对相位对光电子能谱及角分布的影响。

In conclusion, the lag phase of Streptococcus thermophilus was shorten in the eutrophy culture medium, and the time achieving the culminated point of logarithmic phase was shorted also, at the same time, the stationary phase lengthened. After secondary culture, Streptococcus thermophilus reached directly the log phase hardly through the lag phase, and then quickly reached the decline phase. There were more relations of the metabolic regalities of the three kinds of nutritive substances with the super-concentrated incubation process of Streptococcus thermophilus: the more the number of the bacteria, the quicker the metaboling, while the fewer, the slower the metabolism. Moreover, there apparently existed morphologic changes in this course, and there maybe existed the apoptosis, which correlated with bacteria propagation and acid producing. With the culture time postponed, the nutritive substances in the culture medium lacked also, and the morphologic change and apoptosis appeared more obviously.

结果表明,嗜热链球菌在营养丰富的培养基中的生长延滞期缩,到达对数生长顶点的时间变,稳定期的时间延长,当经过二次培养后,嗜热链球菌几乎不经过延滞期直接到达对数期,平稳期持续的时间较,很快到达衰亡期;嗜热链球菌在超浓缩培养过程中三大营养物质的代谢规律也同它的培养过程有很大的关系,菌数多,其代谢旺盛,菌数降低其代谢速度减慢;嗜热链球菌在超浓缩培养过程中存在着明显的菌体形态变化,并可能存在着细胞凋亡,与菌体增殖和产酸规律密切相关,随着培养时间延长,培养基中营养物质变得贫乏,菌体形态变化和细胞凋亡的情况愈加明显。

"Bailout"was listed fourth after the bank bail out was one of the first acts of the financial crisis,"evacuee" came fifth in the wake of Hurricane Katrina devastating New Orleans, and "derivative" featured sixth.

"援助"位居第四,这个词指的是信危机发生后各国对银行实施救援的第一反应;"疏散者"名列第五,该词与新奥尔良遭遇的卡特里娜飓风有关;"信衍生产品"位居第六。

The sunshine that day was warm and bright, and like the sunshine in spring sometimes generous sometimes means in this city, which was gentlely shining through my body, stoping on my short eyewinker, breaking into pieces of brilliances.

那天的太阳是温暖而明媚的,像现在这个春天里时而大方时而吝啬的阳光一般,它们温情脉脉地穿过我的身体,落在我很的睫毛上,碎成了一圈一圈的光华。

By using slowly-varying envelope approximation, a family of solutions of the paraxial wave equation are found in theory, which represents a new family of ultrashort pulsed beams called ultrashort pulsed complex argument Sinc-Gaussian beams.

杨振峰 河北科技大学经济管理学院,石家庄 050018杨振军河北师范大学物理学院,石家庄 050016胡巍华南师范大学传输光学实验室,广州 510631利用理论解析推导的方法,在傍轴近似条件下,给出了一组新的超脉冲光束的解析解,称为超脉冲复宗量辛格高斯光束。

Sanctus. Mandibular fenestra expanded anteriorly. Maxilla protruding more anteriorly than in C. sanctus. Wing claw less developed. Sternum relatively elongate with a "V"-shaped anterior notch. Sternum with a pair of short posterior proceses. Tarsometatarsus relatively short. Pygostyle expanded distally.

上颌骨较圣贤孔子鸟向前突出,指骨爪没有圣贤孔子鸟那样伸长、强壮,胸骨比较拉长,前喙中央有一凹刻构造成"V"字形,同时胸骨两侧有一对的后侧突,跗蹠骨较圣贤孔子鸟,以及尾综合、骨末端膨大。

Install the 1/2 tee, with long and short nipples, on the float chamber by inserting the short nipple in the float chamber tapping, in the end opposite the switch, and screwing up tight with the long nipple pointing in the correct direction, depending on the location of the boiler.

安装带有长和接头的DN15三通,在浮子腔上的将三通接头插入浮子腔的接头里,在开关的另一端,将螺丝旋紧并根据锅炉位置使长接头指向正确的方向。

The merit of the invention are: 1 adopting free curved surface imaging method , three part reflection type Zernike polynomial free curved surface forms short focal distance bigger, relative apertures bigger fields of view angle imaging , rectifying optical aberration much better and its structure is simple; 2 adopting the reflection structure without optical lens, has removed the effect of various chromatic aberration , guarantee the imaging articulation; 3 adopt the design of short focal distance big fields of view angle, focal distance 8 - 15 mm, field of view angles 100 -135 degree, having 120 times multiplications under 250 mm imaging distance, having ultra-thin characteristic property; 4 adopting big relative apertures design ,the relative aperture is 2.0-2.4, having improved the illuminance of flat surface; 5 adopting image space telecentric imaging method , ensures that the image surface irradiance is homogeneous.

本发明的优点是:1采用自由曲面成像方法,三片反射式Zernike多项式自由曲面形成焦距大相对孔径大视场角成像,更好地校正像差,结构简单;2采用无透镜形式的反射式结构,消除了各种色差影响,保证成像清晰度;3采用焦距大视场角设计,焦距8~15mm,具有100~135度的视场角,在250mm成像距离下有120倍的放大倍数,具有超薄特性;4采用大相对孔径设计,相对孔径为2.0~2.4,提高像平面上的光照度;5采用像方远心成像方法,保证像面辐照度均匀。

Among many implement schemes of decoding, the one using chips is the fastest one. Specific decoding chips like FPGA or ASIC have parallel processing structures, which make them be much fit for being high performance data processing processors like Digital Filter, Fast Fourier Transform, Discrete Cosine Transform, etc, and also be the key part of high performance data processing systems. The implementation is synthesizable Verilog code at the RTL level. It is suitable for real time video applications.

在MP3 解码电路中,模块IMDCT 由三个子模块组成:IDCT子模块、加窗函数子模块、输出数据的叠加子模块。N/2 点的输入Xk 经IDCT 变换得到N 点的输出xi 的公式如下:将输出根据不同的块类型(有四种块类型,分别为普通、开始、结束、型)采用不同的窗函数加窗,得到一个36 个点的输出(对于块类型为型的块,单个小块的输出是12 个点,每三个小块组合成一个36 个点的输出)。

The dissertation presents a number of methods and theory involving in diffraction integral, Fourier transform, directly solving differential wave equation, vector analysis, which can be used to study ultrashort pulsed beams propagating in free space, linear dispersive

现将本论文所得主要结论总结如下:基于瑞利—索末菲衍射积分、角谱法和复解析信号法,推导出了等束腰宽度超脉冲高斯光束在自由空间的严格的传输方程和傅里叶谱,适用于几个光周期甚至一个光周期以下的超脉冲光束和大衍射角情形,而不产生空间奇异

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推荐网络例句

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气,收缩臀部肌肉;拱起身体,尽量抬起头来,右腿伸直朝向天花板(膝微屈,以避免肌肉紧张)。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化,但却比去年同期高8%。

However, to get a true quote, you will need to provide detailed personal and financial information.

然而,要让一个真正的引用,你需要提供详细的个人和财务信息。